A Journey through the marine ecosystem of Monterey Bay, California. Where a giant kelp forest hosts one of the most diverse marine ecologies in the world. The secret to the balance of this ecosystem is a keystone species, the Sea Otter. The sea otter feeds on sea urchins and so keeps their numbers under control, preventing them from destroying the kelp habitat. When these otters were hunted for their fur in the Eighteenth century, the bay's ecosystem collapsed. Now scientists understand the importance of protecting this keystone species. Narrated by Steve Backshall
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Title from resource description page (viewed Nov. 21, 2014)
